This book is a decent starter point if you want to learn about crystals and their uses. But definitely don't stop with this one if it's something important to you, because, while the information provided is good, it's shallow, for lack of a better way to describe it.
Also, if you are suffering from a major illness of any sort, DO NOT rely on crystals alone for your treatment. By all means, please see a professional healthcare provider to receive treatment for your condition or illness, and incorporate crystals as an aid to that treatment, but absolutely NEVER leave your full reliance on crystals alone for medical treatment!
As I mentioned, the information here is decent, but shallow. Most of the uses for and ways in which to use crystals are not touched on, or are done so in such a brief way that you can never get a full grasp of it. There are some rituals included in the book, which are easy enough to do, and very short descriptions for some crystals, but I felt like many crystals weren't included in the information. In fact, it almost felt like some of the crystals mentioned are those not very common in everyday use by people who have an interest in this sort of thing. Everybody should know what clear quartz is and how to use it, but I don't think I've ever seen "ruby in fuchsite" before or seen anybody use it, so maybe including a weird one like that wasn't the best choice.
The author also came across to me as worried about how she'd appear to her readers. From all I can gather here, this woman is a witch. What KIND of witch is up for debate, since there are several types, but I HAVE seen the mention of "crystal witches" before, and such a term might describe this woman's chosen path. What bothers me is that she won't just come out and say so. Though heavy hints are dropped, such as references to rituals, a photograph that looks as if it may contain a cauldron, mentions of altars and their set ups and a glancing mention of purposes for such, all tell me that this woman is a witch. What I don't get, though, is why she didn't just come out and say so. Maybe she thought that by saying as much she'd somehow distract her readers from the ultimate purpose of the book, which was to learn about crystals, but I am more inclined to think she didn't mention it for fear of judgment by non-witches that might have picked up the book.
I would have preferred more detail about crystals, their uses, and how I could incorporate them in my daily life and rituals, but that information just isn't given in this book. I'll have to move on to something else for that, obviously, but I can and will use what information is in this one for my references.